Inner box of lunch box



FIG. 1 is a front view of an inner box of a lunch box showing my new design;

FIG. 2 is a back view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top perspective view thereof; and,

FIG. 8 is a bottom perspective view thereof. 

CLAIM The ornamental design for an inner box of a lunch box, as shown and described. 